61005611086 has 64 divisors (see below), whose sum is σ = 111927370752. Its totient is φ = 24342538752.

The previous prime is 61005611083. The next prime is 61005611087. The reversal of 61005611086 is 68011650016.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005611083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25031860 + ... + 25034296.

It is an arithmetic number, because the mean of its divisors is an integer number (1748865168).

Almost surely, 2^61005611086 is an apocalyptic number.

61005611086 is a deficient number, since it is larger than the sum of its proper divisors (50921759666).

61005611086 is a wasteful number, since it uses less digits than its factorization.

61005611086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 61005611086 in words is "sixty-one billion, five million, six hundred eleven thousand, eighty-six".